@book{
  international2012iaea,
  title={World Wide Proficiency Test: Determination of Natural and Artificial Radionuclides in Moss-Soil and Water 
IAEA-CU-2009-03},
  series={Analytical Quality in Nuclear Applications Series},
  number={22},
  year={2012},
  url={https://www.iaea.org/publications/8675/world-wide-proficiency-test-determination-of-natural-and-artificial-radionuclides-in-moss-soil-and-water-iaea-cu-2009-03},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}